Intermitent shutdown ans restart

This one has me stumped. My early (Sept 04) G5 iMac has taken to shutting down and then restarting at random intervals. It wil suddenly just turn off, the power light on the lower rigntface of the machine will flash at about a 10 second interval for anywhere from 3 to 10 minutes as if it was trying to start up. The machine will reboot as if nothing happend. It may repeat the pattern every 20 minutes or longer, but it is inconsistant. It will sometimes go for a couple days with out happening, then suddenly it starts again .
My suspicion is that it might be a power supply or an over-heat problem, (I pretty much keep the 'puter running 24/7), but I see nothing in the system or crash long that indiacates either one.
Anyone have any insight into this one or is it time to take it to the shop for regrooving?

Could be that the thermal paste has dried up, but if things are running well, keep your fingers crossed and do nothing. However, you would be well advised to make a complete clone of your system to an extern drive, I use SuperDuper! for that purpose, it's an excellent program and works flawlessly.

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Won't shutdown or restart unless hard boot - SMCFanControl Application

I have quite a bit of installed hardware so I thought SMCFanControl would be a good idea. However, it seems that I can reproduce a problem I'm having when utilizing the SMC app.
Problem:
1. Won't shutdown or restart unless a power boot is performed
2. Many applications lock up and won't even force quit.
3. Can't reboot locked apps after force quitting when I re-click in dock.
Noticed:
I don't seem to have a problem unless I've at some point started ( or even after I've manually quit ) SMCFanControl. BTW I don't have it to start on login. But once I've used SMC after booting, no matter what, that is when the issues seem to begin. So I tried quitting prior to shutdown. Didn't work.
Question: Has anyone else experienced unexplained lock ups, non forceable quits on apps, no shutdown or startup without boot, whom also has SMCFanControl? Has anyone found a solution to this problem as I REALLY NEED some sort of cooling mechanism. Because without SMC, I'm running about 150 farrenheit and I can't get the room any colder without locking up myself!
P.S. I've tried resetting the PRAM or VRam or whatever Ram is reset when you power up, holding the power button in while then pushing Command, Alt, "R" at the same time until it does that long beep.
The only solution found so far is unnacceptable, which is leaving SMC turned off permanently.
Thanks,
Videoguy_511

Well Bababooey if you're comparing yourself to a Apple Genius Bar then you should already know my answer, your snarky remark get a snarky reply. Why would I go to a salesperson to fix my computer problem when I can go directly go to the source itself. I used to sell Apple computers over 8 years ago and was apple certified before the Genius bar existed. If I am to go about fixing an issue I can't fix on my own I will go to the source itself meaning Apple's programmers and developers - being UI UX Developer myself I know they should have QA'd all platforms and troubleshooted any arising issues.
This was also the first time in the 20 years I've been using a Mac that I even attempted to go on this forum which i thought would put me in connection with a certified Apple representative. This turned out to be a complete waste of time just being a public forum with no Apple employee involved. I was hoping to find a quick fix but in turn I was only frustrated with stupid responses such as yours that were in no way an answer to my original question.
BTW I fixed the issue on my own and without your help or Apples help. I'm glad if all forums point here regarding this issue because I now have the answer. The answer I was looking for from someone earlier was as simple as this {Download Maverick and reinstall the platform - it will take an hour to do but afterward 10.9.2 was installed and my computer is now able to shutdown and restart without having to do a hard boot.} No more software update bar at top and no problems with my drive which I told both you and Grant - I know my computer better than you and I've probably been using them longer than you.
So again Babowa you were so wrong...... and I am right.
Again anyone having the same problem, I suggest reinstalling Maverick and you'll be suprised 10.9.2 will work fine.

Why do I get a popup message in multiple languages requiring a shutdown and restart

Why do I keep getting a popup message in multiple languages requiring a shutdown and restart? Has been going on for a few months. Because of the shutdown reports have been sent to Apple upon restart.

After it restarted, did you see a dialog box resembling this one:
If so, next time it occurs click Report...
Before you send it to Apple, copy the text of the report. Paste it in a reply. Remove or obscure any personal information, should it appear.
If problems continues to occur please determine if they also occur in "Safe Mode":
Safe Mode or "Safe Boot" is a troubleshooting mode that bypasses all third party system extensions and loads only required system components. Read about it: Starting up in Safe Mode
Starting your Mac in Safe Mode will take longer than usual, graphics will not render smoothly, audio is disabled on some Macs, and some programs (iTunes for example) may not work at all.
To end Safe Mode restart your Mac normally. Shutdown will take longer as well.

ITunes hangs windows 8 on shutdown or restart

I have a computer that I have have put a clean install of Windows 8.1 on and everything seemed fine until I installed iTunes. At that point the computer will no longer do a clean shutdown or restart. At this point after I do a shutdown or restart it appears to do it, but it just "hangs" on a black screen and I have to power it off and back on to get it to restart. I have left it alone for up to 15-20 minutes to see if it would do it on it's own eventually, but it did not in that time frame.
Even with the power off/on Windows does not complain about the power cycle. That is, the "hang" appears to be late enough in the cycle that when Windows returns I do not get the message that Windows did not appear to shutdown correctly and offer up safe mode.
Things to note:
If I uninstall iTunes, shutdown/restart is normal again. If I re-install iTunes, the problem returns.
I have full admin rights
I am running Windows 8.1 - 64-bit
I am downloading iTunes 11.4 - 64-bit (current version)
It does not make a difference if I actually run iTunes or not, which makes me think it is with an installed driver or something. I also tried manually stopping the Apple Mobile Device Windows Service first and that also did not make a difference.
I have tried disabling Hybrid Shutdown and it makes no difference either way.
Does anyone know how to fix or at least how to troubleshoot this issue?

I found the answer over here http://superuser.com/a/818018/80188. Basically, for me, after disabling various Apple apps that start at login, I ended up disabling "QuickTime Task" and I can now restart/shutdown cleanly.

HT1557 10.9.2 update won't update on my imac 2010 at all, and now my computer won't shutdown or restart without a hard boot. Did anyone have this same problem and figure out how to fix it?

So for the past few weeks I've been trying to update the 10.9.2 update on my imac (2010 - 21.5 inch) and when I attempt to try to update the software my screen goes grey with a Software Updater top bar the shows up on the top of the grey screen and then just quits doing anything (except the screen saver which works after nothing else happens - and that shows you how long I've been waiting for the grey screen to magically do something. I've attempted downloading the software update then installing it but the same thing happens. I don't think any of my 3rd party software is the cause of this and i'd rather not uninstall the programs since the update won't even do anything. Utility is telling me nothing but the usual ARD element unable to be modified.
With the several failed attempts at installing this update (probably around 15x) my computer will not shutdown nor restart on command anymore. The only way I can shut it down is holding the power button.
I used to have so much faith in Apple products and used to be a devoted user, but since Jobs passed away the direction of Apple has gone down the toilet.

Well Bababooey if you're comparing yourself to a Apple Genius Bar then you should already know my answer, your snarky remark get a snarky reply. Why would I go to a salesperson to fix my computer problem when I can go directly go to the source itself. I used to sell Apple computers over 8 years ago and was apple certified before the Genius bar existed. If I am to go about fixing an issue I can't fix on my own I will go to the source itself meaning Apple's programmers and developers - being UI UX Developer myself I know they should have QA'd all platforms and troubleshooted any arising issues.
This was also the first time in the 20 years I've been using a Mac that I even attempted to go on this forum which i thought would put me in connection with a certified Apple representative. This turned out to be a complete waste of time just being a public forum with no Apple employee involved. I was hoping to find a quick fix but in turn I was only frustrated with stupid responses such as yours that were in no way an answer to my original question.
BTW I fixed the issue on my own and without your help or Apples help. I'm glad if all forums point here regarding this issue because I now have the answer. The answer I was looking for from someone earlier was as simple as this {Download Maverick and reinstall the platform - it will take an hour to do but afterward 10.9.2 was installed and my computer is now able to shutdown and restart without having to do a hard boot.} No more software update bar at top and no problems with my drive which I told both you and Grant - I know my computer better than you and I've probably been using them longer than you.
So again Babowa you were so wrong...... and I am right.
Again anyone having the same problem, I suggest reinstalling Maverick and you'll be suprised 10.9.2 will work fine.

Mavericks 10.9.1 won't shutdown or restart

Just upgraded to 10.9.1 Mavericks. Since upgrading, my MacBook Pro won't shutdown or restart; nothing happens after instigating, then after a few minutes a dialogue box appears saying an open application prevented the action.
I have tried to upgrade to 10.9.2 via the App Store but it requires a restart to complete... Same with using the direct downoad link from the Apple site. No external drives or peripherals attached via USB or Firewire. In order to shutdown I have to force it by holding down the power button. Otherwise the system is functioning fine.
Any ideas? If you need system logs just point me in the right direction...
Cheers guys

It appears there was some element of Chrome or Mail which was preventing the shutdown/restart sequence. Looks like I've fixed it by searching for Mail processes in Activity Monitor and force quitting those, and trashing Chrome (also using AppTrap to delete the prefs too) and reinstalling Chrome.
Just in case anyone else has this problem when upgrading to Mavericks.

My macbook pro is frozen on desktop mouse no response i have forced shutdown and restarted 3 times no change. What to do ?

Hi guys and gals
Have not used my macbook pro for couple of months and now she is frozen - opens to wallpaper on desktop of snow leopard but absolutely no response with mouse or track pad . Screen goes blank after 5 mins then the only response is from the power button . When pressed the screen lights up with window asking if i want to shut down or.....enter has no response . Only option is to force shutdown and restart yet this does not resolve issue.....back to square one!!!!
Help???

If you have more than one user account, you must be logged in as an administrator to carry out these instructions.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Select the most recent panic log under the heading System Diagnostic Reports on the left. If you don't see that heading, select
View ▹ Show Log List from the menu bar. Post the entire contents of the panic report — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

MacBook Pro won't shutdown or restart properly

I am having difficulty shutting down or restarting my core 2 duo macbookpro. When trying to shutdown or restart normally (either by clicking on the blue apple logo on the menu bar and clicking shutdown/restart or by tapping the power button and clicking shutdown/restart), OSX closes all running programs, everything (icons, menubar, dock, etc) disappears except for the wallpaper, and then the screen turns a little dim like the mac is about to shutdown and the little circle (progress) shows it's running. So far everything is completely normal. the problem is that it stays that way and never restarts or shuts down. eventually, i have to restart manually by holding down the power button. I've waited for long periods of time - nothing happens.
moreover, I have to say that this is not after I've installed anything. it's just the way it is & this laptop is completely new.
ANY type of help or solution would be great.
Thanks.

Sounds like you've got an application hanging on shutdown.
Try this:
Close all applications. Open Activity Monitor in Applications>Utilities. Have only "My Processes" showing. Sort them by name. Do you see any addons or extra applications you've installed in this list? If so, end the process. If you see something you don't recognize at all, ask about it. Once you've killed all the processes related to addons, try shutting down the computer.
~Lyssa

I have a mac OS X and when I close it and reopen my screen opens and then shuts down for an instant and then reopens. Does anyone have this occur?? I have shutdown and restarted often.

I have a mac OS X and when I close it and reopen my screen opens and then shuts down for an instant and then reopens. Does anyone have this occur?? I have shutdown and restarted often.

A Safe Mode boot might help ..
Startup your Mac in Safe Mode
A Safe Mode boot takes much longer than a normal boot so be patient.
Once you are in Safe Mode, click Restart from the Apple () menu.
See if the problem persists.

Macbook pro 15 inch can't shutdown and restart normally

My macbook pro 15 inch can't shutdown and restart. I reinstalled the system but the problem still had.what's can i do?
Many thanks

Shutdown the machine until you can take it to a Apple repair/store and get a new adapter or contact the person you might have switched it with.
Your document isn't worth a few thousand dollar machine, use something else to finish it.

Macbook pro not saving any work when on shutdown or restart.

Macbook Pro 13'' early 2011.
i5, 4GB and 320 GB
OS: Mac OS X 10.7.3
System Pref version: 11.0
Everytime I shutdown or restart it does not save any of the system prefernecs and not any work done in terms of text, coding in Eclipse I mean nothing. No matter what you do when you start mac again it shows you the system as it was on Saturday.
This is very bad because spacially you rellay on your mac to work.
Regards,
Anshul Meena

Repairing the permissions of a home folder in Lion is a complicated procedure. I don’t know of a simpler one that always works.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the page that opens.
Drag or copy – do not type – the following line into the Terminal window, then press return:
chmod -R -N ~
The command will take a noticeable amount of time to run. When a new line ending in a dollar sign ($) appears below what you entered, it’s done. You may see a few error messages about an “invalid argument” while the command is running. You can ignore those. If you get an error message with the words “Permission denied,” enter this:
sudo !!
You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up.
Next, boot from your recovery partition by holding down the key combination command-R at startup. Release the keys when you see a gray screen with a spinning dial.
When the recovery desktop appears, select Utilities ▹ Terminal from the menu bar.
In the Terminal window, enter “resetpassword” (without the quotes) and press return. A Reset Password window opens.
Select your boot volume if not already selected.
Select your username from the menu labeled Select the user account if not already selected.
Under Reset Home Directory Permissions and ACLs, click the Reset button.
Select  ▹ Restart from the menu bar.

I am having problems shutting down my MacBook Pro. I go to the apple and click shutdown or restart, it appears the shutdown process starts, the screen goes blue and the little circle keeps going round and round, but nothing happens even after 30 minutes.

I am having problems shutting down my MacBook Pro. I go to the apple and click shutdown or restart, it appears the shutdown process starts, the screen goes blue and the little circle keeps going round and round, but nothing happens even after 30 minutes.

Make sure you quit all your applications before shutting down.
And try resetting the SMC.
Intel-based Macs: Resetting the System Management Controller (SMC)

Elgato video to USB has become unreliable after shutdowns and restarts

I have Yosemite 10.10 on an early 2009 iMac, and an Elgato Video capture device with latest software (1.1.5)
The messages "Device could not be initialized" and also "Please connect your Elgato Video capture hardware to any USB 2.0 port" come up after I have had a shutdown and restart.
For 2 or 3 years i have operated this system with no trouble, but as the iMac software became upgraded, and also the Elgato S/W upgraded, the problem has come up, so now I am reluctant to shut down. However, there are times it must be, such as when the power company shuts service down for maintenance - happens a lot lately. I have tried different ports, and done the unplug and replug routine, but it takes dozens or even hundreds of attempts until one time it works. then i have to be sure not to "quit" after a recording session, or the problem comes up all over again. Also I tried using a USB hub, with no success. Also, I have tried to reset of the USB bus routine (Command-Option-P and R keys during startup) with no success.

Get rid of CleanMyMac and DivX. Add much more RAM. You don't have nearly enough for all that you are trying to load.

System fails to shutdown and restart in addition to keyboard freezing HELP!

System fails to shutdown and restart in addition to keyboard freezing HELP!

Try resetting your SMC.
Resetting the System Management Controller >>
Boot from your system CD, run Disk First Aid from your Disk Utility and repair your permissions.
-Bmer
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Extremely long shutdown, and restart times

All right, I am wondering if anyone has had any trouble with their MacBook taking an inordinately long time to shut down? Mine takes a good 5 minutes to shutdown or restart. On a restart as soon as it resets to the apple screen it only takes a few seconds to start up but the shutdown time is unbearable. Anyone got a fix for this?
(I have upgraded to a gig of ram, but I can't see how that could be the problem. It was ordered directly from Apple and installed by the authorized retailer where I purchased the Mac. I'm sure it could still be a problem but it seems to function perfectly fine otherwise, so I doubt that is what is holding up the shutdown.)
MacBook Mac OS X (10.4.8)

Hi Ace,
try some system maintenance first: Mac OS X 10.3/10.4: System maintenance
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Intermitent shutdown ans restart

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